22123606 has 4 divisors (see below), whose sum is σ = 33185412. Its totient is φ = 11061802.

The previous prime is 22123603. The next prime is 22123609. The reversal of 22123606 is 60632122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22123603) and next prime (22123609).

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530900 + ... + 5530903.

It is an arithmetic number, because the mean of its divisors is an integer number (8296353).

Almost surely, 2^22123606 is an apocalyptic number.

22123606 is a deficient number, since it is larger than the sum of its proper divisors (11061806).

22123606 is a wasteful number, since it uses less digits than its factorization.

22123606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061805.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22123606 is about 4703.5737476944. The cubic root of 22123606 is about 280.7277243415.

Adding to 22123606 its reverse (60632122), we get a palindrome (82755728).

The spelling of 22123606 in words is "twenty-two million, one hundred twenty-three thousand, six hundred six".